Package: crs
Version: 0.15-39
Date: 2026-01-29
Imports: boot, stats, np, quantreg
Suggests: ggplot2, logspline, quadprog, rgl
Title: Categorical Regression Splines
Authors@R: c(person(given = "Jeffrey S.", family = "Racine", role = c("aut","cre"), email = "racinej@mcmaster.ca"),
             person(given = "Zhenghua", family = "Nie", role = c("aut"), email = "niez@mcmaster.ca"),
             person(given = "Brian D.", family = "Ripley", role = c("ctb"), comment = "stepCV.R"))
Description: Regression splines that handle a mix of continuous and categorical (discrete) data often encountered in applied settings. I would like to gratefully acknowledge support from the Natural Sciences and Engineering Research Council of Canada (NSERC, <https://www.nserc-crsng.gc.ca>), the Social Sciences and Humanities Research Council of Canada (SSHRC, <https://www.sshrc-crsh.gc.ca>), and the Shared Hierarchical Academic Research Computing Network (SHARCNET, <https://www.sharcnet.ca>). We would also like to acknowledge the contributions of the GNU GSL authors. In particular, we adapt the GNU GSL B-spline routine gsl_bspline.c adding automated support for quantile knots (in addition to uniform knots), providing missing functionality for derivatives, and for extending the splines beyond their endpoints.
License: GPL (>= 3)
URL: https://github.com/JeffreyRacine/R-Package-crs
BugReports: https://github.com/JeffreyRacine/R-Package-crs/issues
Repository: CRAN
NeedsCompilation: yes
Packaged: 2026-01-29 14:24:52 UTC; jracine
Author: Jeffrey S. Racine [aut, cre],
  Zhenghua Nie [aut],
  Brian D. Ripley [ctb] (stepCV.R)
Maintainer: Jeffrey S. Racine <racinej@mcmaster.ca>
Date/Publication: 2026-01-29 15:10:16 UTC
Built: R 4.6.0; x86_64-w64-mingw32; 2026-04-01 02:33:02 UTC; windows
Archs: x64
